thanx for your suggestions, guys. I downloaded version 4.9.37 from www.limewire.com, use a licensed xp home sp 2 on a p4 2,4 ghz, and an asus p4p800 mainboard.
I suspect the glitch is in my connection, i have sky dsl in germany 16.000 mbits/sec satellite download, isdn 56 kb up.
I think there might be something to GregorK s suggestion, allthough have only a scsi pci card in my computer and of course a graphics card.
The scsi card is only used for my scanner, and i don't operate it while downloading, so the data throughput is about 60-80kB's /sec at max, which should'nt cause problems i guess.
I hope there is a solution.
Maybe i could try another download client and see what happens.

Hein