Mouse pointer randomly disappears in mini2440

Madhura Gandhi
Hello,
The mouse pointer randomly disappears in our mini2440 board when we boot it
up and then we can't do anything with the board. We tried reloading the
zImage, bootloader and root fs image, and even tried formatting and
restoring the NAND flash, but it didn't help. After some time, it randomly
started working. This has happened thrice but this time it didn't start
working again with time. 
Any idea what's happening and how to resolve it? It is severely slowing us
down.
Warm Regards from India!

davef
Are you running a Qt application?  Which one?