I'm on Windows 7, but I have three old image editors that I run in XP Mode. Two of them work fine within XP Mode, however the third (Adobe Image Styler) chokes in its built in file explorer if I select an .ist file (Image Styler document) on the main Windows 7 drive. Basically there is a 20 to 30 second pause while the file explorer tries to preview the file from within its built in file explorer (i.e. File->Open). Everything works fine if I try to access an .ist file (Image Styler document) on the XP mode drive. Also, note that I experience the exact same issue with .jpg files, but strangely no such problem for .gif files (preview works perfectly for files on the main Windows 7 drive). Is it just a software bug or can there be another explanation as to why the software can preview .ist files on the XP drive, but take 30+ seconds to preview an .ist file on the main Windows 7 drive? I should add that it has nothing to do with filesize, the f.ist iles in question are 10k or less. And I experience no such problem with the other software so it's not some kind of general tsclient issue I don't think.