Mouse cursor disappears.

I have 'normal' as a default setting, so in my case it just isn't the solution unfortunately.

i will admit I have done all the other "fixes" that other posters recommend, so many I can't remember. Heck, if you told me to dye my hair purple and set it on fire to resolve the problem, I would consider it as I was getting desparate. :-)

It would be interesting if you reported back in a week whether your problem has been solved.

I too have reset my cursor size to "normal" and thus far have not had a problem. Fingers crossed.

Sorry, but that didn't work for me. Two mac minis purchased this month. Both are set at normal. I still lose the mouse/cursor when it awakes from sleep.

How's this for wierd. It get this issue only when using MS Outlook for Mac and replying to an email - and only when I type a word with an apostrophe, such I'll or I'm - the letter folllowing the apostrope is then capitalised and the cursor lost! The same is happening to a colleague, who also uses MS Outlook on mac.

I am quite sure it does fix the problem for the suite of normal OSX apps that come with the OS. I have a feeling you may be using an app which may internally affect the mouse cursor or size setting such as full screen mode or spaces, launchpad, some of the newer apps etc... for a day try using Normal cursor with just mail and safari for example. turn off flash just as a test.

My cursor is already set to normal. And I doubt it's flash, but I could be wrong. Here's why: I have eight computers here at work (MB Pro 2010, MB Pro 2011, MB Air, two mac mini servers as desktops, etc.) all running Mountain Lion. Only two Macs don't have the problem -- one that I just purchased (haven't used much) and the older MB Pro. All use the same settings and apps. Unlike many of the other reports here, this only occurs after awaking from sleep mode regardless of the app. I've tried many solutions — resetting pram clean installs, etc.

My latest hunch is that it's a migration issue. All the computers, except the old Mac used Mountain Lion's Migration Assistant. I'm wondering if anyone here has the problem without using Migration Assistant.

I'm currently doing a clean install and not using Migration Assistant; to see if this makes a difference. I may not know for weeks. One computer didn't show the problem until two weeks later.

I've had hundreds of Macs since the first Classic, and it seems to me that this is the buggiest OS upgrade I've come across. All kinds of weird mysterious things have been happening with the OS. This is just one of several bugs I'm dealing with — even when I'm not using Migration Assistant. Hope we see some major fixes soon.

I did a completely fresh install of my Mountain Lion install, I formatted the drive completely and then install Mountain Lion fresh, I've not even installed Flash as I use Chrome for my browser.

The problem is not Flash, its not migration Assistant, nor is it a hardware issue, its quite simply an OS bug that needs fixing. Incidently my mouse cursor is also set to normal by default and this hasn't fixed the issue for me, the only thing that has kinda worked is to remove all my other desktops and just use the one, it seems side swiping on my Apple Magic Mouse from one screen to the other and then zooming is what triggers the disappearring cursor for me.

Well, this is very interesting. I have a distinct feeling that Apple don't pay much attention to complaints on this discussion group (unless, but only sometimes, they are made by Feedback). (But I could be wrong.) Mouse disconnection problems have been going on during and since Leopard (four OSs and about 15 upgrades!), on many computers, and not yet fixed despite many Feedbacks and a huge number of postings!

However, I sent Feedback to Apple suggesting that when I have opened and read a post and returned to the list, it would be helpful if the indication that I have read the message was not in faint grey which is almost indistinguishable from other listings, but something more conspicuous. About a month later (a month later!), the present blue dot appeared on all posts and disappeared when I read one (provided the "Discussions" tab is selected). Congratulations, Apple!

Right, like I said you cannot be using multiple spaces... I think this feature modifies the cursor. Try being a simple user, nothing power-user-like. One desktop safari and mail for a day. The kind of old lady type user like your mom would do. I have not had one problem since setting cursor to normal and i used to get it every 5 minutes. I do not use multiple desktops,, spaces, dashboard, super launcher, none of that crap.

Well, I have my cursor set to a bigger size, and I do use multiple desktops, dashboard, and other things, and since an "erase and install" of M. Lion (after Lion when I had mouse cursor dissapearings sometimes three times a day.), I have had no troubles after 2 1/2 weeks.

Dear Apple Fans,

For what it is worth, at work I work on a Windows PC, and using the Safari browser (after having trojan horse prob with Firefox) I began having the disappearing cursor a few weeks ago. I don't know if the problem is related to the Firefox problem, or if it is just Safari. Therefore, whether it is due to your Mac OS seems less likely imo than the possibility that the disappearing cursor is related to Safari?

In Photoshop preferneces I changed my mouse from normal to precise and it works, standard works too but if I choose any of the other cursor options the problem comes back. It is only a temporary fix as I prefer the standard cursor but for now I can work without being too frustated by a disapearing cursor every 30s whilst using PS. PS is the only app I have this problem with.