Hi guys, I hope this saves everyone else a lot of stress and time. FIRST ISSUE: My Samsung Galaxy Ace (Gingerbread) would not connect to my PC (desktop) via USB even after installing and the reinstalling Kies off the cd and then off the web. I kept getting "USD device not recognised" - tried a blackberry cable which did kind of work - BUT I then plugged the Samsung USB Cable into a back USB port on my desktop and suddenly everything worked fine (probably some power - data issue with the front usb ports). SO connectivity sorted. NOTE: Web-searches indicated there should be a "USB Utilities" menu under Applications - Wireless and Network" BUT if it is NOT there apparently Android 2.3+ does NOT have this menu so don't stress and freak out like I did. SO once the phone can connect via usb to the pc (Windows XP) A "USB Connected" notification and USB symbol will appear in the status bar - once you drag that down you should be offered an option to "select to copy files to/from computer." - then the green Android Man magically appears and there is a "Connect Storage to PC" button - press okay if you get a usb access warning message thingy. The Android man goes orange and voila your computer should see your SD card as a drive (also if you read about turning off "USB debugging" under - applications - development... mine doesn't stay off, it seems to turn itself back on automatically, however, but still seems to connect - another NOTE - KIES will only connect my phone if USB debugging is activated). NEXT ISSUE: My PC (Windows XP) kept telling me the 2GB SD Card was FULL (in KIES and EXPLORER) - even though I had maybe 100MB on it . I could however copy files across via Bluetooth which does take a while. SOLUTION: back-up apps and files on SD card to phone or computer using KIES or via BLUETOOTH (with the ace I had to go into each folder and press menu - select "more" and manually make files visible via "bluetooth visibility"). THEN connect via USB to the PC and format the SD Card via WINDOWS and that then gets rid off the no "Free Space" problem - allowing access to the SD Card. A bit long winded but it took me a good day of internet searching and hairpulling to sort this out - so I hope I have saved someone else from that..