Movie out of sync

When I watch films streamed through a website the audio is out of sync with the video. The problem only seems to be when I maximize the screen. If I am watching the film in its own window on the website's page there isn't a problem, but of course the screen is then too small to enjoy the film. Anybody got any ideas why this might be please? Thanks.

My PC runs on XP.
As much as I know about my computer model is what I've got by right-clicking on "My Computer" and reading the "General" tab. It says:
HP Pavilion
AMD Turion(tm) 64 Mobile
Technology ML-34
1.79GHz 960MB of RAM

My C drive is 180 GB of which 141 GB is free.

Thanks very much.

 

Thanks MA. I'll try what you suggest and report back on the thread.

 

Tried what you suggested, MA, but unfortunately it hasn't made a difference.
Used your link to update all my drivers except one because this one triggered a warning msg from MS Windows which advised against it. Updating the drivers made no difference. Then went through the four steps from the other link and ran IOBit Uninstaller, CCleaner, Auslogic Disk Defrag and WhatsInStartup and then tried again but unfortunately no difference. So I guess I probably need to upgrade. Never mind, I've learnt a bit and I think my PC's running faster! Thanks again for your help.

 

Yep. The video can't process as fast as the audio. I do miss XP though

Major Attitude has the major good advice there. Not much you can do outside that.

 

Minimum hardware for Flash currently gives 128MB of graphics RAM as the minimum, it doesn't state screen resolution though, I'd assume 'for HD'. The minimum for the next point upgrade may rise to 512MB as stated for the current Bets 11.8, again, no indication of screen res. but that wouldn't necessarily indicate a 'real' increase, just to allow for quad HD.

Some laptops/desktops with IGP can increase the RAM allocated to graphics in the BIOS, 16 - 128 would be in the likely range for that era CPU.

 

Thanks guys for all your comments. I'm now more or less resigned to watching movies through the smaller window rather than full screen and rather than boosting RAM etc I think I'll rather plod on for a bit with my present PC (not a laptop, btw) and then eventually buy a new PC or laptop.

 

As you can probably gather, MA, I'm not all that well up on stuff but it is the original chip that was in the PC when I bought it so I don't know why it is a mobile chip unless it's a type that can be used in PCs and laptops(?)