Yes, it appears that under certain (as of yet unknown) conditions the while loop at line 2264 will never exit. The loop control looks like this: while ( v <= ceData.maxSteps + 1 ) {
I found the issue. The slider drawing code did not initialise the min/max variables, therefore anytime a slider was shown there was a risk of a random application hang.
This has been fixed in GIT hashes 6c72a84 and 2c0153b (Qt3 and TQt3, respectively).
Thank you for your help with this issue; the backtraces were invaluable in tracing the problem!
Tim