Some countries block these sites. Try going via a free web proxy (google for one) and see if this makes any difference although i would not been too keen to put your username and passwords in while using a free proxy as they may not be secure. The issue you have could also be with your security levels being set a little too high on your browser. You could try donwloading an alternative browser like Opera, Chrome, Firefox etc...
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Some countries block these sites. Try going via a free web proxy (google for one) and see if this makes any difference although i would not been too keen to put your username and passwords in while using a free proxy as they may not be secure. The issue you have could also be with your security levels being set a little too high on your browser. You could try donwloading an alternative browser like Opera, Chrome, Firefox etc...