1 When you use USB 1.0 devices on a USB 2.0 capable system, the device may not function correctly or may have performance issues. 2  To resolve these issues, you may have to replace the USB device with a USB 2.0 capable device. 3  Install the latest updates for Windows and install the latest drivers for the USB device.
What Causes This Problem? The reasons why your mouse may continuously freeze is quite numerous. It could be due to a technical issue, such as low batteries, or it could be due to a connectivity issue, such as a loose or damaged cord. Worst case scenario, your mouse could be defective.
Isolation of mouse splenocytes, why do cells die during the preparation ? In order to do an ELISPOT, I have to isolate mouse splenocytes from mice which I vaccinated. Every time, I did this isolation, by following the common protocol used in my laboratory, two or three of my splenocytes suspension begin to die and form a lysate into the tube while I was counting the living cells before using them.