Why doesn't SignalExpress communicate with TDS3054B scope?

HELP!
I have a TDS3054B scope with v3.39 firmware installed on it. I want to communicate with it using SignalExpress but can't! I can see the instrument in Measurement & Automation Explorer (v4.2.0.3001). It shows up as GPIB0::1::INSTR. I have a USB-GPIB cable going from my laptop to the scope. The laptop is running LabVIEW 8.2. I have installed the drivers for the scope from NI's website but still can't get it working...
I can communicate with the scope using Tektronix's OpenChoice Desktop software, but that software is limited in what it can do...
Any suggestions?

Thanks again, Kent.
The article helped some, but I still don't have it working...
In MAX, under the IVI Drivers >> Logical Names, I have the name MyScope. For the General tab, I have the Driver Session listed as tkds30xx & a Description "TDS3054B oscilloscope".
In MAX, under the IVI Drivers >> Driver Sessions >> tkds30xx >> General tab, I have the following:
Initialization Options enabled: Cache, Range Check, Query Instrument Status; Simulate With: Don't Simulate; Driver Setup: tkds30xx; Description: TDS 3000 Series
In MAX, under the IVI Drivers >> Driver Sessions >> tkds30xx >> Hardware tab, I have the following:
Hardware Assets: Name - TDS3054B (checked); Resource Descriptor - GPIB0::1::INSTR
In MAX, under the IVI Drivers >> Driver Sessions >> tkds30xx >> Software tab, I have the following:
Software Module: <None>; my only choices are <None> or NIDMM.
In MAX, under the IVI Drivers >> Driver Sessions >> tkds30xx >> Virtual Names tab, I have the following:
Virtual Name: CHANNEL1, CHANNEL2, CHANNEL3, CHANNEL4; Physical Name: CH1, CH2, CH3, CH4
In MAX, under the IVI Drivers >> Driver Sessions >> tkds30xx >> Initial Settings tab, I have nothing.
In LabVIEW SignalExpress, I go to Add Step >> Acquire Signals >> IVI Acquire >> IVI Scope Acquire. The Step Setup box is displayed. On the Configuration tab >> Device section >> IVI session name, I select Create New... Another dialoge box opens with an IVI session name in it. I change it to MyScope (same as in MAX), choose the Resource Descriptor GPIB0::1::INSTR (same as in MAX), but can't select an instrument driver. The only thing available under Instrument driver is a check mark. I can't select it for some unknown reason. I hit the OK button & the box closes, returning to the Step Setup screen. I try to run the step once & get an error stating:
"ivi_IviScope Initialize With Options.vi<ERR>
Driver Status: (Hex 0xBFFA1207) Primary Error: (Hex 0xBFFA1207) The item does not exist in the collection.
Elaboration: tkds30xx"
Back to square 1...

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On Fri, 12 Nov 2004 13:49:31 -0600 (CST), "mrutter@contech"
wrote:
>I have 1 NI PCI GPIB board in my computer
>I have 2 identical devices (keithley 237) connected one at address 15
>one at address 16
>and 2 different programs one program to connect with 15 and 1 to
>connect with 16
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>tell the 2nd labview program to communicate with 16. then both
>communications come back with error device timeout. one at a time, I
>can communicate find with either device.
>
>Why can't I communicate with two different GPIB devices at the same
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