ok I'm after some advice on a weird thing that happpened today.

Last night I was using my laptop on my home network. I was on a site that we'll say was 'Not suitable for work". I was BROWSING in private mode in IE. I finished browsing, closed all windows and shut down. I have no recollection of anything else unsual.

This morning at work I plugged into my work network. I did not notice anything unusual. I certainly had no prompts to print anything.

After a few minutes I had cause to print a word document. I did so and went to collect from the shared printer.

Underneath the word document (and another document someone else had printed) was a 4 page print out of the NSFW web page I had browsed the night before.

I was lucky enough to find and remove.

The only explanations I can think of are:

1. It is a complete coincidence. Someone else viewed the site at work and decided to print. They have spend today wondering who has their print out. I do not however think anyone at my workplace is stupid enough to do this.

2. I accidentally hit print off IE last night and somehow I am networked so that my computer can access the work network and sent to print there. I am not aware that this is the case. Our external access is rubbish. I can BARELY access webmail out of OFFICE.

3. I accidentally hit print off IE last night and it stored the output file and printed it as soon as I connected to a network with a printer on. I have no recollection of a dialogue box to print this file.

4. I have some malware that has made this happen. Why has it chosen this site and not a non NSFW site?

5. Someone is tracking my surfing and printed out said file as a mysterious warning. Unlikely but who KNOWS. 

None of these options really stack up. Frankly I'm a little freaked out. Can anyone suggest what can be happening here. Oh and before the advice comes - don't use a laptop that I may use at work for NSFW content. Yip. Check. Agree.

Thanks for any help. To be safe I recommend going here and FOLLOWING the directions.