Portable Oo quits unexpectedly on File > New

Setup:
- 1 GB Swissbit USB key
- Portable Apps Suite 1.0 beta

Steps:
1. Run Portable Oo
2. File > New

Result:
The application quits unexpectedly. Note that File>Open, along with other menu choices would cause the same reaction. Some menu choices such as Help>About do not do that.

Is there anything I can do to fix this problem? Thanks.
-Hai

---- Update ----
I don't have any problem running Poo off the USB key, the described behavior only occur when I ran it off my HD, which I think it has something to do with long pathname.