(btw. Was at the genius bar today for another issue entirely and ran this by the guy I was working with. He said all I needed to do was load iChat on to my computer. I thought: AWESOME that would be so EASY. Too bad it didn't work. Duh. Why would he suggest that?)
The Guys and Gals at the Genius Bars tend to know more about the more popular items of Apple Software.
Pages, iMovie, iPhoto, Garageband, Keynote, Address Book/Contact, Mail and so on. iChat on earlier version of the OS and Messages come well down the list.
Of the Geniuses that have contacted me from Stores to get help, few seem to be aware that each version of the OS has it's own iChat version with Mountiain Lion having Messages and that they are not transferable is any way.
They don't know any better.
Also Apple Reemote Desktop 3.6.1 http://support.apple.com/kb/DL1594
This particular update is after the Start date of this thread and may be of some use.
On the other hand it may be the version that changes the Black view some people had to the White one currently seen
Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"
iMac 2.5Ghz 5i 2011 (Mountain Lion 10.8.2)
G4/1GhzDual MDD (Leopard 10.5.8)
MacBookPro 2Gb (Snow Leopard 10.6.8)
Mac OS X (10.6.8),
Couple of iPhones and an iPad
"Limit the Logs to the Bits above Binary Images." No, Seriously
Message was edited by: Ralph Johns (UK)
It seems to be simply a matter of incompatible screen resolutions. If you set the screen resolution on both computers to the same (I've used 1024x768) then you can screen share from the imac to the macbook pro. It looks kinda funny, but at least the white screen has been replaced by the imac's screen!
I would like to confirm what Dan posted. The "all white screen when sharing" issue seems to be resolved. I shared my iMac with my sister MacBook Air and she was able to view my screen without me having to change my screen resolutions. Yippie!
I am very glad to see this issue resolved. Screen sharing is a powerful tool that makes my life easier!
For what it's worth… I have just experienced a very similar problem:
The OS X built-in screen sharing (e.g. over Finder, not iChat) stopped working all of a sudden and I would get a white screen. The iMac I was trying to control appeared to work normally though.
I was able to trace this down to the menu option: Screen sharing > View > Adaptive quality
Works with "Full quality", shows white screen when using "adaptive quality". I am currently able to reproduce this.
No idea why this happend now. Everything worked fine a few minutes ago. Kickstarting ARD deamon didn't help either. FYI, I am connecting to a 27" iMac with a 30" display attached over VPN and a 5 MBit/s upload connection. Both computers are still running on 10.8.3.