I am having problems in connecting the Galaxy Tab 7.7 to an Ubuntu 12.04 Linux based PC via a USB cable. Every time I connect the tablet to Ubuntu, I get a message saying "Unable to mount Android; Error initializing camera: -60: Could not lock the device" The peculiar part is that I get 2 additional windows pop up - one for the P6800 itself and the other is the P6800's external SD card - but I cannot browse any files at all - in fact, I cannot carry out any file operations at all. Searching the web, I found suggestions like making sure that 'mtpfs' and 'mtp-tools' packages are installed - they are but nothing works. The only way I can transfer files between the P6800 and Ubuntu is via Bluetooth - which is very, very slow! BTW, I did connect up my Acer A500 tablet via USB - and it works just fine. I can transfer files back and forth without any problems. So it's just the Galaxy Tab that is giving me the problem. Anyone here using the Galaxy Tab 7.7 with Ubuntu 12.04? Do you face the same problems? Any tips?