can you post your schematic and the whole code ??? will be handy to figure out how to solve your problem then.

Are you saying that it doesn't work if you change your crystal from 4 times lower speed??? it suppose too BUT you must recalculate all the interrupt, cycles and delay considering this new clock speed. It's only for your Baud rate. Any delay, must be divide by 4. It has to work.

I'll suggest to upgrade to new version 2.45. Worth the investement i tell you.