Try using special utility - Rundll Fix Wizard as I remember. Scan your PC for viruses also.
It can be file or registry corrupt - you can fix it with Rundll Error Fix Wizard - this one helped me (google it).It can also be a virus - if so scan your PC with antivirus with latest updates.
There are multiple explanations for why a rundll error can occur on a Windows XP machine. The most common reason is when the user doesn't properly delete a DLL file. Though it can also occur if a DLL file becomes corrupted.
The rundll 32 exe-bad image error always appears when the recently-installed application or the dll file is not a valid Windows image. To solve it, you can check this against your installation diskette or reinstall the programs from the installation CD.
You need to clean your registry of missing or corrupt DLL entries. Its explained here in more detail: http://www.squidoo.com/rundllerror
You can use special program - Rundll Errors Fix Wizard. You can read about it on the website - see related link.
The answer is the spell check doesn't work on my laptop?
Run dll error is defined as a crucial system error for it can lead to a sudden dip in your PC's performance and other severe system errors. It is associated with run.dll file which leads a kernel role in Windows operating system. Run dll error can be generated by spyware problems, driver issues, disk errors, damaged version of attcm.exe process, incompatible version of dynamic link files and memory issues.
Logic error.
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This is called parallax error.
A playstation