I have just bought this program for my laptop i have installed it but when i run it it goes slow and keeps saying not responding. When i put a video file into the video time-line section and press play it will just show a still of the video clip then just go black. Does anyone know whats wrong and how to fix it?

Laptop - Dell Inspiron 1545
Prossesor - Intel(R) Celeron (R) CPU 900@ 2.20 GHz
RAM - 3GB
System Type - 64bit operating system

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