Picaxe program software error!

The picaxe software stops responding.
I use:

Intel Dual Core CPU 6600 @ 2.4 GHZ
Kingston 1GB DDR2 @ 677 Mhz * 2
Seagate Barracuda 160GB (SATA2)
Asus Commando Motherboard
Windows XP SP2 with all updates
2 Serial Ports, 10 USB 2.0.
Picaxe Programming editor 5.15

A "pause & stop responding" occurs about every 2nd download to my picaxe, and I have to stop the program AXE28X1.exe, after that somtimes I need to stop AXE20X1_0.exe, then it downloads, or finds an error in my code.

Is anyone else having this problem?