Possible virus need help

I need some help here as I do not know what to do. I have ran several virus scanners and they all come back clean. However, I am told by offsite pc experts that I do have a virus and need to get it cleaned off. I have ran UBD4W and it removed everything it could find. I ran Microsofts Security Essentials, Malwarebytes all come back clean. Still when ever I go to either facbook.com or linkedin.com all I get are the text and no pictures like it should be. I have tried different computers and all have the same problem but when I use a different network (as I have 2 of them where I work which are total different) and use a known clean computer it has no problems. At this point I am about ready to format all computers (15 of them) and start all over again but not sure this will solve the problem. Please help and advise.
thank you
Mike

hello, lets run 2 more please..

Please download TDSSKiller.zip and and extract it.

• Run TDSSKiller.exe.
• Click on Change Parameters
• Put a check in the box of Detect TDLFS file system
• Click Start scan.
• When it is finished the utility outputs a list of detected objects with description.
  The utility automatically selects an action (Cure or Delete) for malicious objects.
  The utility prompts the user to select an action to apply to suspicious objects (Skip, by default). Let the options as it is and click Continue
• Let reboot if needed and tell me if the tool needed a reboot.
• Click on Report and post the contents of the text file that will open.
  
  Note: By default, the utility outputs the log into system disk (it is usually the disk with installed operating system, C:\) root folder. The Log has a name like: TDSSKiller.Version_Date_Time_log.txt.

>>>
I'd like us to scan your machine with ESET OnlineScan

• Hold down Control and click on the following link to open ESET OnlineScan in a new window.
  ESET OnlineScan
• Click the button.
• For alternate browsers only: (Microsoft Internet Explorer users can skip these steps)
  • Click on to download the ESET Smart Installer. Save it to your desktop.
  • Double click on the icon on your desktop.
• Check
• Click the button.
• Accept any security warnings from your browser.
• Under scan settings, check and check Remove found threats
• Click Advanced settings and select the following:
  • Scan potentially unwanted applications
  • Scan for potentially unsafe applications
  • Enable Anti-Stealth technology
• ESET will then download updates for itself, install itself, and begin scanning your computer. Please be patient as this can take some time.
• When the scan completes, push
• Push , and save the file to your desktop using a unique name, such as ESETScan. Include the contents of this report in your next reply.
• Push the button.
• Push

NOTE: In some instances if no malware is found there will be no log produced.