Bug? Disappearing files..

[GenieNitro]

Hi, I'm using Windows XP Home (non SP2) on a MAc OSX system. I have 2 virtual drives - on of 2.5gb which I have the system etc on (drive c) and one that I am installing programs into (drive E). I installed 3 pieces of software intothe 'Program Files' folder on drive E - they worked just fine for 2/3 day but then when I went to use them yesterday evening they were gone! Drive is still there and fine. The uninstall entries are even in the add/remove box in control panel....

Anyone seen this before?

cheers

Steve