Unable to record .dem file

Hey, so i got a brand new laptop and gmod runs like a champ on it. And i decided to make a test in the source recorder, i was able to record fine with a stable 70fps. But when i go to load it up to record it, Gmod crashes.

Here is a screen recording of what happens, sorry for bad quality, and the fact it picked up my breathing… (uploaded to new youtube account since other one wont let me login)

My laptop specs:
Windows 7 Home Premium 64-bit
Intel Core i5 CPU
Mobility Radeon HD 5470
4GB Ram
640GB of HDD space

This is a new laptop, nothing quirky has happened so far except this.

Do i need to change any settings or do i have to resort to a bought version of fraps.?

Thanks.

edit: Am i missing any information?

edit2: Please guys respond, i need help with this, no joke.