Version:           3.5.1 (using KDE KDE 3.5.1)
Installed from:    Debian testing/unstable Packages
OS:                Linux

I'm using Linux kernel 2.6.8-2-686

Quanta crashes just crashes at random without warning, losing work.  I cannot provide a way to reproduce this bug since it crashes at any time, even when you're not using it.  For a programmer's tool, this is very bad.  Below is the stack trace.  

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Using host libthread_db library "/lib/tls/libthread_db.so.1".
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[Thread debugging using libthread_db enabled]
[New Thread 1106996768 (LWP 32457)]
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[KCrash handler]
#5  0x080fb746 in QValueList<KMdiChildView*>::detachInternal ()
#6  0x080fb7af in QValueList<KMdiChildView*>::detachInternal ()
#7  0x081769a3 in SAGroupParser::staticMetaObject ()
#8  0x08178c2e in SAGroupParser::staticMetaObject ()
#9  0x08178c7f in SAGroupParser::staticMetaObject ()
#10 0x08178c7f in SAGroupParser::staticMetaObject ()
#11 0x08178c7f in SAGroupParser::staticMetaObject ()
#12 0x08178c7f in SAGroupParser::staticMetaObject ()
#13 0x08319669 in htmlDocumentProperties::staticMetaObject ()
#14 0x08176ac6 in SAGroupParser::staticMetaObject ()
#15 0x0818b117 in SAGroupParser::staticMetaObject ()
#16 0x080a2edf in ?? ()
#17 0x084c2e60 in ?? ()
#18 0x09d0b7d0 in ?? ()
#19 0x09376160 in ?? ()
#20 0xbffff1e8 in ?? ()
#21 0x41ddf214 in free () from /lib/tls/libc.so.6
#22 0x080ed98c in ?? ()
#23 0x09d0b7d0 in ?? ()
#24 0x00000000 in ?? ()

-- STACK TRACE END --