http://support.microsoft.com/kb/314106
I haven't seen it happen, but it's possible that the graphics applications could leave your display adapter in a weird mode, in which case you may have to do some kind of reset.
In addition to the shareware, here's a 1986 release of the CAD software ProDesign II:
http://xpda.com/ProDesignII/
These shareware and public domain files came from Public Brand Software, a shareware distributor. The zip files contain the files that were on the original floppies, usually one per .zip file, but sometimes two or three floppies per .zip. PKXarc or something similar is included in the .zip files to uncompress the files. There is documentation (more or less) that tells how to use each application. Most work under the command prompt in XP, but some have a little trouble. You might have to go to the MSDOS mode of Windows 98 or Me to get a few of them running. Even so, the documentation is pretty entertaining.
| 1. ace-astronomy.zip | AstroSoft Computerized Ephemeris (ACE), Version 1.00, 1986 |
| 2. astronomy-weather.zip | Hurrican Tracking, 1987 |
| 3. astronomy.zip | The AST, STARVIEW, and STORM systems, 1986 |
| 4. bible-games.zip | Bible Games, 1987 |
| 5. boyan.zip | Boyan modem software, 1987 |
| 6. business-strategist.zip | Business Strategist, 1987 |
| 7. cogo.zip | GeoCalc Coordinate Geometry (COGO), 1987 |
| 8. curve-digitizer.zip | Curve Digitizer 2D CAD, 1987 |
| 9. curve-fitting.zip | CurveFit 2.10q by Thomas S. Cox |
| 10. family-ties.zip | Family Ties Computer Genealogy Program ver 1.15, by Neil Wagstaff, 1986 |
| 11. farm-economics.zip | Minnesota Aids and Alberta Dept of Agriculture Farm Economics, 1984 |
| 12. finger-paint.zip | Finger Paint Version 2.00, 1988 |
| 13. floppy-almanac.zip | Astronomical Almanac, U. S. Naval Observatory Nautical Almanac Office, 1987 |
| 14. games.zip | Several games, 1985 |
| 15. hershey-fonts.zip | Hershey Font coordinates, three sizes, 1988 |
| 16. language.zip | French, German, Hebrew, Italian, and Spanish tutors, 1985 |
| 17. linear-programming.zip | Kinetics Linear Programming System, 1984 |
| 18. lotus-worksheets.zip | Various Worksheets for Lotus 123. Excel opens them. 1985 |
| 19. math-and-statistics.zip | SPPC (1984), Multi-Variate Statistical Package (1980), and Simultaneous Equation Solver (1985) |
| 20. math-pascal.zip | Engineering, Scientific and Statistical routines in Pascal (source code) |
| 21. matrix-laboratory.zip (Matlab!) | Matlab, 1981? 1986? |
| 22. pc-calc.zip | PC-Calc Spreadsheet, 1988 |
| 23. pc-key-draw.zip | PC Key Draw drawing program, 1987 |
| 24. piano-man.zip | Piano Man music program, 1984 |
| 25. picture-displays.zip | Picture Display -- images and software, 1987 |
| 26. qubecalc.zip | Qubecalc 3-D Spreadsheets, 1987 |
| 27. rbbs.zip | RBBS Bulletin Board System, 1988 |
| 28. science-sampler.zip | Various scientific programs, with Basic source code. |
| 29. slide-shows.zip | Slide Shows with Flicker presentation graphics application, 1986 |
| 30. superstat.zip | Superstat Statistics software, 1986 |
| 31. survey-soft.zip | Surveying Software, 1987 |
| 32. word-list.zip | A list of 146,440 words, 1986 |