compaqman

Hey guys

I'm having a problem with Sony Vegas 9 pro.
When i add a video clip(from a camcorder)that also contains audio, I drag it into the time-line of the project, and lets say the video clip is 1 minute and includes audio (voice) but I want to cut 30 sec out of the VIDEO ONLY. When i select the clip to be cut, it also does the same thing to the audio and visa-versa , so what ever i do to the the video or audio, it does it to both, and i don't want that.

Thanks for reading this and/or replying.

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Pentium Dual-Core E2180 2.0GHz Processor(O.C. 2.6GHz)
ECS G31T-M
2GB of RAM (1X2) - PQi DDR2-800
160GB Western Digital SATA HDD
18x DVD-RW Combo Drive
DVD Combo Drive
250Watt PSU
C-media eXtreme 7.1 Surround sound PCI Card
K-World PCI Capture Card
ATI Radeon 2400 HD Pro 256MB DDR2 (PCI-E16x)