A quick tip regarding the Drafting Settings dialog box. It is possible to open this dialog and set the visible tab. You may want to do this if you want to access a certain tab from within a lisp file, a menu, toolbar button, or even a tool palette.
Since AutoCAD moved to the MDI world back in 1999, users have wanted a fast way to switch drawings. Some of these include...
Set the system variable TASKBAR to 1 and you get a button for each open drawing on the Windows taskbar. This is how R14 would have appeared when you had multiple "sessions" open.
The Windows pull-down menu allows you to select an open drawing.
Ctrl+Tab cycles through drawings pretty quickly if you are a keyboard junkie.
AutoCAD 2009 added "Quick View Drawings" (Command ._QVDRAWING), but this tool can seem a bit sluggish, especially on a slower machine with many drawings open.
Many people prefer tabs, similar to those in Microsoft Excel. If none of the above solutions work for you, there are several vendors out there with add-on's that provide this "tab" functionality. I have tested some, but NOT all of these. This is not meant to be a rating grid, only a summary so that if you are looking for this type of tool, all the links are here.
If you want to create a raster image from your AutoCAD drawing, first you need to decide on what raster format to use.
First off, you may not need any 3rd party software. AutoCAD 2007 comes with two .PC3 files that allow you to create JPG or PNG files. For vector drawings (lines, arcs, text, etc.), PNG is the preferred choice. JPG is a lossy format and generally results in a poor representation of a drawing file. Read more about Raster Image Output from AutoCAD
If you have ever received a paper plot or legal description of a parcel or tract of land, and you need to recreate this geometry in AutoCAD, but were not sure how to enter the bearings, distances, and curve data, check out the following tutorial that I have written - hosted over at CADTutor.com
I did some very basic testing of several versions of IntelliCAD. Basic testing means that I installed the program and opened various existing r2004 format AutoCAD drawings. Doesn't sound like much, but it gave me a lot of information. Here are the results. Read more about IntelliCAD versions