Activation failure - Requesting I need to activate Photoshop CS5.1 despite having done this previously & used Photoshop. Adobe can't connect to internet to activate, yet program is allowed through Firewall and not having connectivity issues through B

Hi,

I currently have Photoshop CS5.1 on Windows 7 (64 bit) and it's now requesting I need to re-activate it, despite having already done this with a serial number when I installed it and even used the program numerous times.

I get a screen saying "Product activation is required" but every time I try to activate it, it says there was a connection issue and asks me to connect to the internet.

I've checked my firewall settings and Adobe is allowed through. No connection issues using my Browser, Skype etc.

Anyone got any solutions?

Thanks,

Westy