The 7750 is know for being slow and lacking flash memory in comparison to other BB models (dubbed the TurtleBerry) for a reason
a co-worker had a similar issue with OTA install of Ramble IM on a 7750 before getting his 7250. Ramble does offer a download you can install through desktop manager loader and that seemed to work on his 7750 if I recall?
Originally Posted by polaroidofpngnws
yes the 7750