Hi, I recently bought a Mustek ScanExpress A3 USB 1200 Pro scanner, and installed the drivers from the disk they included with the scanner. The drivers seemed to install fine, except I cannot get the device to scan. I'm working on a PowerPC G5 iMac running OSX 10.4.11. In Image Capture, I go to Devices>Browse devices>TWAIN devices and can find the scanner, but when I click connect it just sits there and doesn't appear to do anything, still telling me that no devices are connected. If I do the same thing, except check "Use TWAIN software", I get a new window, giving me the option to scan. I click scan, and the app quits unexpectedly. I downloaded the TWAIN SANE interface, to see if that would help anything. It detects that the scanner is there, but says it may not be supported by the SANE interface. I go back to Image Capture, Browse devices again, but instead click SANE and it connects. However, when I try to preview, it says "The scanner SANE is in use by another application...". I tried scanning through VueScan, but it doesn't support this model apparently. I also can't get it to scan through Photoshop CS3- I go to File>Import> and it lists only: Video Frames to Layers, Anti-aliased PICT, and PICT Resource, which don't seem to help me. I think there may be something wrong with my TWAIN plug-in for Photoshop, but I honestly don't know. Any help would be greatly appreciated, as I would really, really like to use this scanner. I'm really confused by this problem, since it says clearly in multiple places that this scanner is MacOSX compatible. Thank you so much for taking the time to read!!