How do I correct error 148.3 for Illustrator CS4?

Question

How do I correct error 148.3 in order to open Illustrator CS4?

Answer 1

Gen,
I am afraid error 148.3 has never been reported here, so quite possibly no one will know what it is about.
Unless someone comes up with a cleverer suggestion, you may have a look at this general list of things to try(of which 5) may be the least likely to help).
You may try the following (you may have tried/done some of them already) and see whether it helps (the following is a general list of things you may try when the issue is not in a specific file; 3) and 4) are specifically aimed at possibly corrupt preferences):
1) Close down Illy and open again;
2) Restart the computer (you may do that up to 3 times);
3) Close down Illy and press Ctrl+Alt+Shift/Cmd+Option+Shift during startup (easy but irreversible);
4) Move the folder http://www.bugge.com/Family-and-friends/Illy/illy.html (follow the link with that name) with Illy closed (more tedious but also more thorough and reversible);
5) Look through and try out the relevant among the Other options (follow the link with that name, Item 7) is a list of usual suspects among other applications that may disturb and confuse Illy, Item 15) applies to CC, CS6, and maybe CS5);
Even more seriously, you may:
6) Uninstall, run the Cleaner Tool (if you have CS3/CS4/CS5/CS6/CC), and reinstall.
http://www.adobe.com/support/contact/cscleanertool.html