Low resolution pictures/banners while browswing

Caporegime
Joined
18 Oct 2002
Posts
28,625
Location
London
Weird problem with my new laptop. Quite often, website banners/picture display in a very blocky low resolution. For example; the OcUK banner at the top left will be noticeably lower res and you can see the border around the OcUK sign. Also on Facebook, my profile picture and pictures in general look awful - like so.

r6winc.png


The really odd thing is for the OcUK banner - it doesn't always do it. Completely random when it appears low-res. I am assuming this is a Windows problem (or possibly the screen). It is a brand new laptop with the following specs;

Acer 5738Z
15.6" HD LCD Screen
Windows 7
Dual Core
3GB RAM

This issue only occurs on websites, the screen with Windows navigating, videos etc looks crisp. Any ideas?
 
Thing is isn't doing it on OcUK at the moment. A better description; you can see a clear box around the OcUK banner which is a different shade blue to the rest of that section. I am using Firefox.

EDIT - For now it appears to be a Firefox problem. IE is displaying Facebook images correctly.
 
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You don't have any odd extensions installed? That looks like a compression routine to improve page rendering speed à la turbo mode in Opera....
 
Currently installed;

YouTube Video Downloader
Adblock Plus
English Dictionary
FlashGot
FoxTab
IE Tab Plus
NoScript

I am pretty sure I have all of these on my main PC and the problem does not occur.
 
A few times I have connected using USB tethering on my X10. Most of the times though, I connect through the wireless at home or wireless at work (Eduroam). Confident I have noticed the (Facebook at least) low-res pictures on all connections.
 
Shift+R increases the quality of images on a page, I only get this when connected USB tethering on my sony phone back on normal wireless its all good again.
 
I've seen this kind of issue present in Firefox on a T-Mobile 3G dongle and, as already suggested, I would have thought the 'force reload' command (Ctrl-Shift-R) should sort it.

For a permanent fix I used the Modify Headers extension with the following settings (Tools -> Modify Headers)

316pv2v.png
 
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