This error can sometimes be posted when a plug-in is attempting to be instantiated on a DSP chip which is not available. What should actually be posted is an error such as " xxx plug-in could not be created. The required DSP is not available".Remember that Mix Cards have three types of DSP chips: -3 SRAM chips (used for effects such as short delays and reverbs".-2 DRAM chips (used for effects such as long delays, chorus', and flangers)-1 "no" RAM chip (used for effects such as eqs and some compressors).If looking at the DSP Resources Window in Pro Tools, or the old Allocator software, the order of the chips from top to bottom (Detailed view) or left to right (Small view) is:1 = SRAM2 = No RAM3 = DRAM4 = SRAM5 = SRAM6 = DRAMRead the the documentation for the plug-in you are using (or call the manufacturer) to find out which type of chip it uses, and then check to see if there is a chip of the type it needs available for usage. If there is not, then you need to either quit