Currently Being ModeratedMay 19, 2011 2:08 PM (in response to haydnfromwolverhampton)
It sounds like you are talking about Application Switcher from system 6, twenty five years ago. If you are using system 9 and you happened to have other systems on your hard drive, the computer could get confused with what to do becausse it sees older software that the processor can not handle.
I looked at a map of England and did not recognize any cities that would have a Mac user group. If you google and find a user group near you, the best thing to do would be to find a Boot CD, put it in, restart while holding down the C key and see if you can clean up your drive.
Otherwise, ebay has boot CDs listed from time to time. This may look tempting:
But, here is the catch. The disks look like they are grey and not the universal install CDs. If one of the CDs is not for your exact model of computer, be sure and look for a CD that is white with an orange 9 on it.