I am not sure if my problem is related, but
I am having a similar boot problem with tws.
It may not be the same problem. I am posting
this because seemingly IB support has lost the
skill of looking at source code.
I just moved to Fedora Core 8 Linux (stable)
and followed the normal installation procedures
including downloading the latest Sun Java.
My symptom is that tws will run only if a new
copy is down loaded. If I try to run a second
time, I get a "can not launch" fatal error
(using the new Java javaws launcher from my
firefox browser). Removing "*tws*" files in
/tmp helps some but is not sufficient. Also,
switch back and forth between tws and beta
tws helps some, but is also not sufficient.
Any suggestions?