It could have been some change made on the machine in which you may not have noticed. Some setting in IE. I don't nor will run vista since it is too bloated of an OS.
I as an IT professional use Firefox since it is not a bloated browser like IE is. It is leaner, faster, supports 95% of what IE does, and is customizable for free.
We have alot of issues with IE and our blackboard site where I work, and ALWAYS suggest users to use Firefox when taking tests b/c of lack of stupid errors that occour for example error on page.
You problem could also be with the plug in that VZW uses causing the problem. I am not sure what version of IE you are using, but i would suggest 7 not 8 since there are still issues with it, and forever will be. You could remove the plug in and re-install it to see if that helps.
You do this by going to tools in IE, then manage addons, then enable or disable addons. its called verizonwireless media upload see pix below. It is an active X. simply press delete, and log out and close IE, then go back to the site, and you should be prompted to re-install it.
