CNA becomes very SLOW after adding new switch to cluster

Added a CAT-2970 to my cluster and now CNA is acting very slow, especially when I attempt managing the new switch. I am still below the 16 node cluster limit. I did initially find a CRC on the new switch trunk port int. and noticed that it came up as Dynamic Auto/ISL and the core was at Dynamic Desireable/ISL, so I hard set it to Dyn-desire to match... still very slow CNA.
The problem was not there before and after restarting the application, it appears to be fine... until I attempt to manage/view/reach the new switch - and then EVERYTHING in CNA goes slow again (hourglass of death) for some period of time.
Yet, telnet & ping to new switch is always fast, no problems at all. Strictly seems to be a CNA problem...
Ideas??
Thanks,
Al

Looking at the outline given by u,there may be several reasons for this slow access such as loose connection, improper trunking and so on.Ofcourse, CNA problem can also be one cause.But, if u r sure that it is a CNA problem, why not u try for a new version of CNA?First of all, which version of CNA r u using?is it CNA 1.0 or 2.0 version.If so, try installing or upgrading CNA3.0.
For detailed info on installing and upgrading to CNA3.0, the following URL will be useful.
http://www.cisco.com/en/US/products/ps5931/prod_installation_guides_list.html

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