Simple Hyperlink doesnt function but url exists

I am creating a开发者_如何学运维 site that includes a couple of hyperlinks to another website. The problem is if clicked, it will open a new window but not display anything. But if you then copy the URL and paste it in a new window it will work.

Even stranger is once you have been on the site, all links will work.

The code is simply:

<a href="https://www.matrix-scm.net/Handler.ashx?act=cmnu&req=new&mop=scm_dashboard!usage_new_wiz&navid=4E87DA603A834A5D9F32AB70AF42733B&navtgt=7EF3C78E1A40431F93976D327D44C88A&crumb=1" target="_blank"> Demand and Usage</a>

The link is:

https://www.matrix-scm.net/Handler.ashx?act=cmnu&req=new&mop=scm_dashboard!usage_new_wiz&navid=4E87DA603A834A5D9F32AB70AF42733B&navtgt=7EF3C78E1A40431F93976D327D44C88A&crumb=1

the site is a https if that helps anybody

I am currently using firefox 3.6.18

NOTE: I have now added & amp; to the url with no luck, is there anything else I am missing? It now looks like:

<a href="https://www.matrix-scm.net/Handler.ashx?act=cmnu&req=new&amp;mop=scm_dashboard!usage_new_wiz&amp;navid=4E87DA603A834A5D9F32AB70AF42733B&amp;navtgt=7EF3C78E1A40431F93976D327D44C88A&amp;crumb=1" target="_blank">Demand and Usage</a>