Ah, ok, but still: LW does not have a restart command anywhere, thus, clicking anything under the Library Tab should not initiate restarts of any kind. Are you sure you have the latest Java? You might also want to try running the usual scan applications (Defrag and stuff...)

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iMac G4 OSX 10.3.9
RAM 256MB
LW 4.10.5 Basic
ADSL anything from 3 to 8Mbps/around 1024kbps

"Raise your can of Beer on high
And seal your fate forever
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The Golden Age Of Leather"
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